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    • 25. 发明申请
    • Decoding block codes
    • 解码块码
    • US20060020869A1
    • 2006-01-26
    • US10899376
    • 2004-07-26
    • Vipul DesaiYufei BlankenshipBrian Classon
    • Vipul DesaiYufei BlankenshipBrian Classon
    • H03M13/00
    • H03M13/2909H03M13/152H03M13/155H03M13/3784H03M13/453H03M13/618
    • This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. A method and structure of processing soft information in a block code decoder, includes a soft-input soft-output decoder (910) receiving a length n soft input vector, creating a binary vector Y corresponding to the length n soft input vector, hard decoding each linear function Xi of Y and a test pattern Zi of one or more test patterns, wherein if the hard decoding is successful a codeword produced by the hard decoding of the linear function Xi is added to a set S, removing redundant codewords in S to form a reduced set S′ (520), and an extrinsic value estimator (1140) generating n soft outputs based on c estimated soft output values and (n−c) non-estimated soft output values (530) wherein the c estimated soft output values are computed from one or more positions of the length n soft input vector and one or more codewords in the set S′.
    • 该摘要不被认为是限制性的,因为其他实施例可能偏离本摘要中描述的特征。 在块码解码器中处理软信息的方法和结构包括:软输入软输出解码器(910),接收长度为n的软输入向量,创建与长度n软输入向量对应的二进制向量Y,硬解码 Y的每个线性函数X i i和一个或多个测试模式的测试模式Z i i i i,其中如果硬解码成功,则由硬解码产生的码字 线性函数X i i被添加到集合S中,去除S中的冗余码字以形成缩减集合S'(520),并且外部值估计器(1140)基于c估计生成n个软输出 软输出值和(nc)非估计软输出值(530),其中从所述长度n软输入向量和所述集合S'中的一个或多个码字的一个或多个位置计算c个估计软输出值。